Fabuloso has been with his mare Lebrera for 3 days. Up till this moment the mare has not allowed the stallion to get close to their foal. This is the first time the mare allowed the foal to approach his father, and the stallion is very careful.
In this clip the «calming signals» are very clear; Fabuloso is showing the sleeping posture, the turned ears and most importantly; standing very still. Another interesting part is that the horses hindquarter is considered the safe side of the horse; a horse that wants to show that he is safe to approach will turn his hindquarters to the other horse, the head is more frightening.
The reaction when the stallion turns his head towards the foal is typical; the foal feels threatened and responds by not only the typical foal chewing, but also by turning his hindquarters towards the stallion.
These calming signals can be used by humans to show a timid horse that we mean it no harm; turn our backs to the horse, looking down and standing very still is a far better way to get a horses trust than to try to pet it on the head.